However, mesons are not the only hadronic component in the Universe. There are also baryons and antibaryons and our domain of temperature where strangeness begins to decouple overlaps with the range in which baryons and antibaryons are expected to freeze-out at about \(T=40\) -\(50\,\mathrm {MeV}\)  [1]}. To be able to study antibaryon annihilation in a dynamical model we would need to include aside of \(\rho \)  also \(\omega \)  particle as one of the key antibaryon annihilation processes is \(\bar{N} +N\Leftrightarrow \rho +\omega \) , and if hyperons (strange baryons and antibaryons) are involved the \(K^*\)  enters into this process.
